US Patent 11299349 Bolt supply device

A bolt supply device includes a conveyor, a bolt absorbing portion, a bolt storage portion, and an allocation portion. The conveyor is an endless belt and is provided to circulate between a first height and a second height above the first height. The bolt absorbing portion protrudes on an outer surface of a ring formed by the conveyor and is configured to absorb a bolt. The bolt storage portion is provided in a region where the bolt absorbing portion ascends, the region located at the first height. The allocation portion is configured to swing to drop the bolt in either one of both width directions of the conveyor at the second height, the bolt absorbed by the bolt absorbing portion in the bolt storage portion.